Black buffaloes wade through the waters of Iraq's Mesopotamian marshes, leisurely chewing on reeds. After years of drought, winter rains have brought some respite to herders and livestock in the famous wetlands.

Exposed to the beating sun and hot dry air, more than 10% of the water carried by the Colorado River evaporates, leaks or spills as the 1,450-mile (2,334-kilometer) powerhouse of the West flows through the region's dams, reservoirs and open-air canals.

For decades, key stewards of the river have ignored the massive water loss, instead allocating Arizona, California, Nevada and Mexico their share of the river without subtracting what's evaporated.

The world will likely breach the internationally agreed-upon climate change threshold in about a decade, and keep heating to break through a next warming limit around mid-century even with big pollution cuts, artificial intelligence predicts in a new study that's more pessimistic than previous modeling.

The study in Monday's journal Proceedings of the National Academy of Sciences reignites a debate on whether it's still possible to limit global warming to 1.5 degrees Celsius, as called for in the 2015 Paris climate agreement, to minimize the most damaging effects of climate change. The world has already warmed 1.1 or 1.2 degrees since pre-industrial times, or the mid-19th century, scientists say.

A fishing community in southern Brazil has an unusual ally: wild dolphins.

Accounts of people and dolphins working together to hunt fish go back millennia, from the time of the Roman Empire near what is now southern France to 19th century Queensland, Australia. But while historians and storytellers have recounted the human point of view, it's been impossible to confirm how the dolphins have benefited — or if they've been taken advantage of — before sonar and underwater microphones could track them underwater.

At 10:40 a.m. on a day in January, two powerful beams of light from the Svalbard governor's boat pierced the complete darkness of the mountain-fringed fjord it was sailing. It was carrying the children's choir from this remote village's church to visit an even more isolated Arctic outpost.

That's polar night in this Norwegian archipelago – so close to the North Pole the sun is at least six degrees below the horizon from mid-November through the end of January.

Long-haul carrier Emirates successfully flew a Boeing 777 on a test flight Monday with one engine entirely powered by so-called sustainable aviation fuel. This comes as carriers worldwide try to lessen their carbon footprint.

Flight No. EK2646 flew for just under an hour over the coastline of the United Arab Emirates, after taking off from Dubai International Airport, the world's busiest for international travel, and heading out into the Persian Gulf before circling back to land. The fuel powered one of the Boeing's two General Electric Co. engines, with the other running on conventional jet fuel for safety.

Vultures scavenge for dead animals along a river turned sewer conduit in Kenya's capital Nairobi. Its waters turn from clear to black as it traverses informal settlements and industrial hubs.

The river and its tributaries cross Kibera, known as Africa's largest slum with close to 200,000 residents, and other informal settlements. It skirts dozens of factories that manufacture textiles, liquor and building materials. Many have been accused by environmentalists of discharging raw sewage and other pollutants like oil, plastic and glass into the water.

On Idit Silman's first day as Israel's new environmental protection minister, she handed out soft drinks in disposable plastic cups to hospital patients.

The gesture held deep symbolic meaning in Israel, where soft drinks and single-use cups, plates and cutlery have become weapons in a culture war between the country's secular Jewish majority and the smaller but politically powerful religious minority.

Hundreds of climate and environmental groups from around the world released a letter that decried the nomination of an oil executive to oversee the United Nations climate negotiations at COP28 this year.

Earlier this month, the United Arab Emirates, host of the U.N. climate talks this year, named Sultan al-Jaber to the presidency of the conference Nov. 30 to Dec. 12. The company he runs as chief executive, the Abu Dhabi National Oil Co., produces 4 million barrels of crude oil per day and hopes to expand to 5 million daily by the end of the decade.

A year after the most destructive wildfire in the state's history scorched nearly 1,100 homes, Colorado lawmakers are considering joining other Western states by adopting artificial intelligence in the hopes of detecting blazes before they burn out of control.

A Colorado Senate committee on Thursday unanimously voted to move forward a bill to create a $2 million pilot program that would station cameras on mountaintops, and use artificial intelligence to monitor the footage and help detect early signs of a wildfire. The bill will move to the state Senate Appropriations Committee next.